Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:25 2013

Optimize a model with 1028 rows, 3044 columns and 8082 nonzeros
Presolve removed 958 rows and 2829 columns
Presolve time: 0.12s
Presolved: 70 rows, 215 columns, 430 nonzeros
Variable types: 151 continuous, 64 integer (64 binary)

Root relaxation: objective 7.444602e+03, 5 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 7444.60178    0    1          - 7444.60178     -      -    0s
     0     0 7459.12226    0    2          - 7459.12226     -      -    0s
     0     0 7459.12232    0    2          - 7459.12232     -      -    0s
     0     0 7459.12984    0    2          - 7459.12984     -      -    0s
     0     0 7459.13740    0    2          - 7459.13740     -      -    0s
     0     0 7459.14495    0    2          - 7459.14495     -      -    0s
     0     0 7459.15248    0    2          - 7459.15248     -      -    0s
H    0     0                    7459.1541736 7459.15248  0.00%     -    0s

Cutting planes:
  Cover: 1
  Implied bound: 1
  Flow cover: 1

Explored 0 nodes (30 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.459154173591e+03, best bound 7.459152480054e+03, gap 0.0000%